suter



4 Sheets-Sheet 2 Filed July 2, 1928 A /1 N/ 2 w w w P V w 0 V 3 .7 14 .7 H 5 7 "n \l a 6 y 1. d M W 1 5 WW 4 M June 20, 1933. H. SUTER 1,915,037 I CALCULATING MACHINE Filed July 2, 1928 4 Sheets-Sheet 3 4 Sheets-Sheet 4 H. SUTER CALCULATING MACHINE Q o O Q) Q 0 Filed July 2. 1928 June 20, 1933.

Patented June' 20, 1933 UNITED STATES PATENT OFFICE HEINRICH SUTER, OF ZURICH, SWITZERLAND, ASSIGNOR TO THE FIRM H. W. EGLI A. G.,

OF ZURICH, SWITZERLAND CALCULATING MACHINE Application filed July 2, 1928, Serial No. 289,922, and in Switzerland July 6, 1927.

The present invention relates to a calculating machine having a carriage for the counters which is automatically displaced in both directions when multiplications are performed. In multiplying-it is known to move the carriage mechanically always over the full extent of its stroke, i. e. irrespective of the number of digits of a set up .number. The loss of time caused thereby cannot be compensated by limiting the stroke of the carriage from time to time as required by inserting a pin into holes provided to this end on the carriage as this manipulation requires time and attention on the part of the operator.

Now in order to limit the stroke of the carriage according to requirements i. e. according to the number of digits of the number to be set up and without performing manual work according to the present invention the setting up of the one number causes a displacement of the setting up mechanism, which corresponds to the number of digits of that number and determines thereby the movement of an auxiliary member and a corresponding stroke of the carriage supporting the counters. To this end the auxiliary member may move together with the carriage or may serve after having been displaced as.

an abutment for the carriage to limit the stroke of the latter.

By these means a larger output of the calculating machine when performingmultiplications is obtained.

Constru' tional examples of the subject matter of the present invention are illustrated on the accom])anying drawings in which Figs. 11() illustrate a first constructional example of a calculating machine inparticular.

Fig. 1 is an elevation with parts shown in a vertical section of the machine.

Fig. 2 is a plan view with parts broken away of Fig. 1. v

Fig. 3-shows a detail of Fig. 1 in elevation with parts shownin a vertical section.

Fig. 4 is a side view of a. detail of Fig. 3,

Fig. 5 shows parts of the calculating machine in a (liflerent working position,

Fig. 6 is an end elevation of the mechanism for setting up the multiplier,

8 Fig. 6 is a detail of the sliding member Fig. 7 is a detail view of the mechanism for setting up the multiplicand,

Fig. 8 is a plan view corresponding to Fig. 2 with parts broken away,

Fig. 9 is a detail of the carriage shifting mechanism,

Fig. 10 is a vertical section along line X-X in Fig. 8;

Figs. 11-13 illustrate a second constructional example, of which Fig. 11 is a vertical section along line XIXI in Fig. 12,

Fig. 12 is a plan view of Fig. 11 with parts broken away and v Fig. 13 shows a detail,

Fig. 14 shows a detail;

Figs. 15-18 show in similar views as Figs. 11-13 a third constructional example.

Referring now to the first constructional example illustrated in Figs. 1-10, 1 denotes the carriage supporting the counters which is adapted to be displaced in its longitudinal direction to which end it is mounted on rollers 2 and 3 rotatably mounted in the casing 4.- of the machine. The carriage 1 carries the counting disc 5 comprising a number of units each actuated in a known manner by abevel wheel 6 cooperating with one or the other of two bevel wheels 7 and 8 slidably mounted on a shaft 9 havinga square cross-section. On each shaft 9 a pinion 10 is displaceable which is shifted to cooperate with its respective drum 11 when the key of the plurality of keys A for setting up the multiplicand is depressed. These known means for shifting the pinion 10 along its shaft 9 are shown in Fig. 7 and comprise a slidably mounted bar 12 which is kept in its inoperative position by a coil spring 13 pressing a pin 14 of the bar 12 against a fixed abutment 15. The bar 12 is provided with a plurality of teeth 16 having a facing 17 the inclination of which varies to cause a displacement of the bar 12 corresponding to the value of the depressed key A. A pin 18 on the key shaft cooperates with the facing 17 when the key A is depressed and a coil spring 19 returns the depressed key A into its initial position. The

drums 11 are provided with teeth 20 of different breadth so that a definite number of steps of movement of the pinion 10 is obtained for every definite displacement of the pinion 10. The drums 11 are rotated by the electric motor 21 through the intermediary of shaft 22, Fig. 8, bevel gear 23, shaft 24, bevel gear 25 and drum shafts 26. The above described mechanism for setting up the multiplicand is well known;

The carriage 1 on which the counters5 are mounted is provided with a toothed rack 27 with which a lever 28 pivotally mounted on a stationary pin 29 cooperates for securing the carriage 1 in its adjusted position against the influence of a coil spring 30 and for causing a step by step movement of the carriage as will be explained below.

B designates the plurality of keys for setting up the multiplier and there are provided ten keys (marked 09) arranged in a frame 31 which serve for setting up toothed disks 32 forming calculating elements and being influenced by coil springs 33. The toothed disks 32 are mounted in a frame 35 displaceable on an axle 34 fixed in the stationary frame 31 in a direction parallel to that in which the carriagel carrying the numeral wheels is displaceable. The displaceable frame 35 together with its parts and the keys I B form the device for setting up the multiplier. This device causes automatically the displacement of the carriage 1 when performing a multiplication.

On the displaceable frame 35 locking pawls 36 are mounted on a common axle 37 and are pressed into engagement with the toothed disks 32 by means of springs 38 for securing the disks in their adjusted positions. Two bars 39 and 39f are fixed to the stationary frame 31 and a slide 40 is displaceable on the bars 39 in a direction which is parallel to the direction in which the frame 35 is displaceable. The slide is provided with a slot 41 into which a pusher pawl 42 adapted to cooperate with the toothedklisks 32 projects. The pawl 42 may be displaced along its turning axle43 (Fig. 8) when the slide 40 is displaced so as to cooperate with one toothed disk 32 after the other in order to bring the latter into theirzero position after they have been removed therefrom by thesetting up of the multiplier. The axle 43 is mounted with its ends in arms 44 linked to the stationary frame 31 whereby a stirrup is formed by means of which the pawl 42 is actuated for returning the toothed disks 32; during its movement the pawl 42 is guided by a cross pin 45 resting on a guide facing 46 provided on the slide 40, whereby an exact cooperation of the pawl 42 with the teeth of the disks 32 1s ensured. The slide 40 is in positive connection with the carriage 1- by means of a lever 47 rotatable about a set pin 48 fixed in the stationary frame 31.

bearing the numeral 2, then the key bearing the numeral 1 and finally the key for the numeral 5 are depressed. By depressing a key B its pertaining lever 49 is turned by an amount corresponding to the numeral of the key; the lever 49 is mounted on an axle 5O fixed to the stationary frame 31 and projects into the range of all the keys B by means of a rod 51 passing through the lever 49 and forming part of a stirrup mounted on the axle 50. The keys B are provided with a slot 52 and the slots of the different keys have different inclinations to cause a displacement of the rod 51 which corresponds to the numeral of the depressed key. The turning movement of the lever 49 caused by the depression of the key bearing the numeral 2, brings the lever 49 so near to an abutment facing 53 of the toothed disk 32 which is at the extreme left (when looking at Fig. 2) of the displaceable frame 35 that the latter can only turn through the extent of two teeth under the influence of the sprin 33. This turning movement of the toothed disk 32 occurs as soon as a projection 54 of the depressed key B strikes a rod 55 forming part of a pivoted stirrup, the rod 55 passing through a release pawl 56 which is pivoted on an axle 57 carried in the stationary frame 31 and is turned downward against the action of the spring 58 and releases thereby the locking pawl 36 of the toothed disk 32; the arms 59 forming a stirrup with the rod 55 are turned about the axle 57. When the depressed key is released it returns into its position of rest by the action of a spring 60, likewise the release pawl 56, whereupon the locking pawl 36 swings back and secures the toothed disk 32 in its new position of angular displacement of two teeth. Owing to the rocking movement of the release pawl 56 and theaxle 57 oscillating thereby, a rod 61 linked to an arm 62 fixed to the axle 57 is moved forward and backward. During its forward movement the head 63 at the free end ofthe rod 61 causes a displacement of a lever 64 against the action of a spring 65 (Fig. 4) and during the backward movement of the rod 61 the lever 64 is pressed against a pin 66 provided on one arm of a two-armed lever 67 (Figs. 2 and 3) movable about a fulcrum pin 68. A pin 69 fixed to the other arm of the two-armed lever 67 cooperates with a slot 7 0 provided in the lever 28. When the rod 61 moves backward its head 63 slides over'the lever 64 and rocks the lever 67 and thereby the lever 28 so that the carriage 1 is moved by one step by the action of the spring 30, I

i. e. the carriage is moved to an extent corresponding to one digit towards the right in cooperates (Fig. 5).

Fig. 2. Thereby the carriage 1 causes a dis placement of the slide 40 in the opposite direction by the action of the connecting lever 47 and the movable frame 35 takes part in the movement of the slide 40. The frame 35 is thereby displaced by the distance between the toothed disks 32 so that when the second key (corresponding to the numeral 1) is depressed the toothed disk 32 which is the second from the leftin Fig. 2 is now acted upon, whereby the carriage 1, the slide 40 and the movable frame 35 are displaced by a further step and so on.

After the parts 1, 40 and 35 have been displaced by as many steps as the multiplier set up by means of the keys B has digits the motor key 71 is depressed whereby the contacts 72 are pressed against each other and the electric circuit of the electric motor 21 is closed and the shaft 24 is rotated. During every revolution of the shaft 24 a cam 73 (Fig. 10) pullsa lever 74 linked to the lever 44 and causes the pusher pawl 42 to turn the toothed disk 32 which is in its path of movement (i. e. the disk corresponding to the hundreds in the example given) backward by one tooth. In order to avoid that the motor key 71 has to be constantly depressed during the operation and to let it return by the action of its spring 75 and yet main- "taining the circuit closed a second pair of contacts 76 is provided with which one arm 77 of a two armed lever 78 fulcrumed at 79 To this end a nose 80 which projects into a notch 81 of a disk 82 fixed to a toothed wheel 83 leaves this notch as soon as the motor 21 starts to rotate and bears on the boss 82 whereby the lever arm 77 is pressed on the contacts 76 and closes the motorcircuit. A lever 84 secures the lever 77 in its contact making position. The twoarmed lever 84 swings on an axle 96 and carries at its upper end a pin 97 and is infiuenced by a spring 98 which presses the pin I 97 against an oblique facing 99 of a sliding member 86 mounted on the slide. 40 (Fig. 10) 'hen the abutments of the disk 32 release the member 86 the latter is moved in the upward direction under the action of spring 87 and the lever 84 swings into the path of the* lever 77 and locks the latter.

The counting mechanism is cut in when the arm 77 is turned in the downward direction inasmuch as the lever'78 is linked by 100 to a lever 101 which in its turn is linked to a. lever 102. The latter is provided with a pin 103 cooperating with a sleeve 104 that causes engagement of the miter gears 7 or 8 withthe miter gearfi, and for this purpose the gear wheels 7 and 8, are slidable on shaft 9. The lever 101 is provided with oblique faces 105 and 106 with which a pin 107 cooperates. The latter is fixed to the one arm 108 of a bell crank lever turnable about 109 and provided in its other arm 110 with a slot 111 with which a pin 112 fixed to the gear wheel 95 cooperates. shown in Fig. 5 bevel wheel 7 is moved into engagement with bevel wheel 6 of the registering mechanism when the lever arm 77 is depressed. 1

The shaft 24, driven by motor 21, operates the two-armed contact lever 77, 78 by means of the disk 82 (Figs. 5and 8) on said shaft 24 causing the two-armed lever to close the motor circuit. At the same time the spring 98 pulls the locking lever 84, 84 over the end of lever 78 and latches the latter in circuit closing position while the motor starting key 138 can then be released.

By lever 78 and link 100 the lever 101 is so positioned that the surface 106 and pin 107 of lever 110 engage. The lever 102 connected to lever 101 is therefore moved so that the control sleeve 104 shifts the wheels 7 and 8 for the number wheels'into operative frame 31, whereby a pin 89 cooperating with an inclined slot 90 of a lever 91 (Fig. 6) causes a rocking of the latter. The lever 91 is pivoted on a set screw 92 of the stationary frame 31 and causes by means of a pin 93 which cooperates with a circular groove 94in a disk fixed to a gear wheel 95 the latter 'to be'brought into or out of en gagement with the gear wheel 83. At the part 113 the teeth are removed on half of the width of the wheel so that there is no operative engagement between the gear wheels 83 and 95 until the latter is axially displaced by the pin 93 as is well known in the art.

In order to return the carriage 1 by a step by step movement into its initial position a disk 114 having an eccentric cam groove is As is able about 117 cooperates with said cam groove and causes a rocking movement of the lever 116. On the latter a bar 118 is slidably mounted and provided at its free end with a tooth 119 adapted to cooperate with the teeth of the rack 27. A pin 120 is fixed to the bar 118 and is acted upon by a slot 121 of a lever 122. The turning of the latter causes the tooth 119 to be moved into and out of engagement with the teeth of the rack 27. The lever 122 is turned through the intermediary of the parts 100112.

On the shaft 150 there is, in addition to F a lever 102, also alever 122.

When shaft 150 is swung, lever 102 swings with lever 122 to swing the nose 119 and effect the step-by-step movement of the rack 27.

During the following revolution of the shaft 24 the carriage 1 is displaced by one out displacing the frame 35 so that the pusher pawl 42 and the sliding member 86 are now opposite the second toothed disk 32 (the disk of the tens) which is then turned back into its position of rest in the manner described above. Thereupon the carriage 1 and the slide 40 are again displaced by one step whereupon the toothed disk 32 corresponding to the units and which has been last turned when setting up the multiplier is returned into its position of rest. During this movement a pusher 123 (Fig. 6) is moved in the downward direction against the influence of a spring 124 and displaces thereby a locking lever 125 mounted on the stationary frame 31 and influenced by a spring 126. The locking lever 125 is provided with a tooth 125' which engages a toothed rack 127 fixed to the displaceable frame 35 and a spring 128 forces-the frame 35 into its initial position when the tooth 125' is withdrawn from engagement. The tooth 125' secures the displaceable frame 35 in its displaced position obtained by setting up the multiplier until the slide 40 has regained its initial position. The lever 84 is displaced from its position locking the lever 77, 78 when the facing 99 of the member 86 engages the pin 97 of the former and is withdrawn and the spring 84 turns the lever 84 out of engagement with 77 so that the contacts 76 are interrupted and the motor cut out.

In the further two constructional examples of the calculating machine a locking member is displaced when the multiplier set up whereby an abutment member determining the displacement of the carriage is displaced by a step by step movement.

In the constructional example illustrated in Figs. 11-14 the lever 47 which is positively connected to the slide 40 is turned when the multiplier is set up by means of the keys B in order to serve as an abutment for the displacement movement of the carriage 1. The lever 47 cooperates with an abutment 128 fixed to the carriage 1, the abutment being inserted in the electric circuit to the electric motor 21 and contacting with a. conductive facing or tongue of the lever 47 as soon as the latter is turned through one step of the displacement movement of the carriage 1; in the position of rest, illustrated in Fig. 12 the lever 47 influenced by a spring 129 is not yet in conductive connection with the abutment 128' of the carriage 1, as the end of the lever 47 is insulated at 47 In order to carry out a multiplication the same operations are performed as described above with the first constructional example, that is to say the multiplicand is first set up by means of the keysAand then the multiplier by means of the keys B. When setting up the multiplier thearm 62 swinging to and fro causes a rocking movement of an arm 130 by means of the connecting rod 131. Thereby a stirrup 132 fixed on the axis 133 of the arm 130 is rocked slightly downward and thereupon upward into the position of rest shown in Fig. 11. The stirrup 132 is provided in its middle portion with an opening 134 (Fig. 14) into which a nose 135 provided on the lever 47 projects; in the opening 134 a lower row of teeth 136 and an upperrow of teeth 137 are provided, the teeth of one row being staggered against the teeth of the other row. During the above mentioned up and down movement of the stirrup 132, the turning axle 133 of which is mounted in the stationary frame 31, the nose 135 of the lever 47 has moved from the tooth 136 situated at the extreme left (Fig. 14) to the next tooth 136 by the influence of the spring 129 on the lever 47, whereby the latter has performed a turning motion in the direction of the arrow shown 'in Fig. 12 to the extent of one step; during this turning movement of the lever 47 the latter abuts transitorily on the tooth 137 which is to the extreme left in Fig. 14 whereby the correct step by step movement of the lever 47 from one tooth 136 to the next tooth 136 of the stirrup 132 r is ensured. When the first digit of the multiplier is set up by means of the keys B the extreme left of the toothed disks 32 is turned when setting up the second digit of the multiplier the next toothed disk 32 is acted upon and so on, whereby the lever 47 is every time turned in the locking stirrup up to the nexttooth 136 so thatthe slide 40 and the carriage 1 are again displaced by one step.

After the slide 40 and the frame 35 have been displaced by the setting up of the multiplier by means of the keysB through as many steps as the multiplier has digits the lever 47 is in the desired position and is locked therein.

Thereupon a key 138 is depressed whereby a lever 61 fulcrumed at 61 is rocked. The end of the lever 61 cooperates with the twoarmed lever 67 and causes a turning of the latter in direction indicated by the arrow in Fig. 13, so that the lever28 is moved out of the path of the toothed rack 27 fixed to the earriage 1, whereupon the spring 30 moves the carriage 1 towards the right in Figs. 12 and 13. The carriage 1 contacts thereby with its abutment 128 against the lever 47, the latter limiting thus the travel of the carriage 1 in correspondance with the number of digits of the set up multiplier.

When the key 138 is released the lever 28 electric motor 21 is closed. The latter drives in the same manner as explained with the first constructional example the shaft 24 and the toothed disks 32, which have been turned by the setting up of the multiplier, are turned back one after the other into their position of rest as in the first constructional example, whilst the carriage 1 is automatically and in a step by step manner, i.e. by one digit at a time, displaced towards the left in Fig. 12, whereby during every step one tooth of the rack 27 slides over the lever 28. The slide 40 is similarly displaced step by step when the carriage 1 moves, i.e. the slide is displaced from the position opposite one toothed disk 32 to that opposite the next toothed disk without causing the frame 35 to take part in this movement. During the final moyement of the slide 40 into its position of rest a pusher releases a locking device for the frame 35 as has been explained with reference to the first constructional example and the frame 35 is returned into its initial position by the influence of its spring. Thereupon the carriage 1 as well as the lever 47, the slide 40 and the dis-' placeable frame 35 are again in their initial positions in which the lever 47 has no conductive contact with the abutment 128 of the carriage 1 so that the circuit to the electric motor 21 is interrupted.

An further calculating operation may then e performed.

The constructional example illustrated in Figs. 15-18 differs from that described above in the following points:

When setting up the multiplier by means of the keys .B the displaceable frame 35 is moved step by step towards the left in Fig. 16 and in correspondence with the number of digits, whilst the slide 40 remains for the time being in its position, as the carriage 1, which is positively connected to the slide 40 by the lever 47, is not yet displaced. The step by step movement of the frame 35 carrying the toothed disks 32 is controlled by the fact that this frame is provided with an I elongated arm 139 projecting in between the part of the stirrup 132 provided with teeth 136, 137. At the end of the setting up of the multiplier by means of the keys B the motor key 71 provided as in the first constructional example is depressed, whereby the circuit to the electric motor 21 is closed and the shaft 24 is rotated, whereby the return movement of the toothed disks 32 is caused, whilst the carriage 1 travels during the automatically performed calculating operation step by step towards the right in Fig. 16 by so many steps as there are digits in the multiplier. The

carriage 1 causes a corresponding step by step displacement of the slide 40 in the opposite direction as the two are connected by the lever 47; the return movement of the toothed disks 32 is effected with this constructional example in an opposite sense to that explained in the previous constructional examples, i.' e. first of all the disk for the units, then the disk for the tens and with a multiplier having three digits the disk for the hundreds is finally returned into the initial position. a

When returning the last disk 32, which is at the extreme left of the displaceable frame 35 illustrated in Fig. 16 a pin 140 provided on this disk abuts against afbell crank lever 141 mounted by means of a set pin 142 in the arm 1390f the frame 35. Thereby the bell crank lever 141 is so rocked that it displaces a rod 143, which turns the lever 67 by means of an inclinedfacing 144 so that the lever 28 gets outof engagement with the rack 27 fixed to the carriage 1, whereupon the spring 30 pulls thecarriage 1 back into its initial position; during the previous displacement of the carriage 1 in the opposite direction the teeth of the rack 27 slide past the lever 28. one end by means of a slot 145 on a stationary pin 146 whilst the other end is \linked to a pin 147 fixed to the bell crank lever 141; the pin 147 being of such a length that the cooperation between the frame 35 and the rod 143 is ensured for every position of the frame 35; in- Fig. 15 the rod 143 is shown n such a position in which the lever 28 is noperative, whilst this lever is shown in the operative position in Fig. 17. During the return movement of the carriage 1 the lever v 47 and thereby the slide 40 are moved back into their initial positions, and the latter moves the displaceableframe 35 into its initial position..

'I claim:

1. In a calculating machine, in combination, means for setting up the multiplicand, means for setting up the multiplier, a carria e for indicating the product and adapted to e displaced relatively to said means for setting up the multiplier, an operative connection between said means for setting up the multiplier and said carriage for determining'the displacement of the latter in dependency on the number of digits of the multiplier set up, and means for automatically returning said setting-up means to their initial positions upon completion of the multiplication.

2. In a calculating machine, in combination, means for setting up the multiplicand, means for setting up the multiplier. a carriage for indicating the product adapted to be displaced relatively to said means for setting up the multiplier, a member operatively connected to said means for setting up the multiplier and adapted to determine the displacement of said carriage in dependency on the The rod 143 is guided at its number of digits of the set up multiplier, and means for automatically returning said setting-up means to their initial positions upon completion of the multiplication.

3. In a calculating machine, in combination, means for setting up the multiplicand, means for setting up the multiplier, a carriage for indicating the product adapted to be displaced relatively to said means for setting up the multiplier, means to cause a stepwise movement of said carriage, an operative connection between said step-wise movement means and the means for setting up the multiplier for causing a displacement of the carriage in dependency on the number of digits of the multiplier, and means for automatically returning said setting-up means to their initial positions upon completion of the multiplication.

4; In a calculating machine, in combination, means for setting up the multiplicand, means for setting up the multiplier, a carriage for indicating the product adapted to bedisplaced relatively to said means for set ting up the multiplier, a locking device for said carriage, a member displaced by said means for setting up the multiplier in accordance with the number of digits of said multiplier, means adapted to release said locking device, and means to cause a displacement of -said carriage into a position determined by said member and automatic means .to return the displaced carriage into its initial position.

5. In a calculating machine, in combination, means for setting up the multiplicand, means for setting up the multiplier including toothed disks forming calculating elements, a movable body in which said disks are mounted, an operative connection between said mov able body and said means for setting up the multiplier for displacing the former by a step by step movement, the number of steps depending on the number of digits of the multiplier, a carriage for indicating the prodnot, adapted to be displaced in accordance with the number of digits set up in the multiplier and an operative connection between said movable body and said carriage.

6. In a calculating machine, in combina-- tion, means for setting up the multiplicand, means for setting up the multiplier includ ing a movable body, a displaceable carriage for indicating the product, means operatively connecting said carriage to said means for setting up the multiplier and adapted to release said carriage for displacement by a step by step movement, the number of steps depending on the number of digits of the multiplier, a slide operatively connected to said carriage and to said movable body, whereby said slide and said body take part in the displacement movement of the carriage, means to return said body into its initial position after the slide has reached its initial position, and

means for automatically returning said setting-up means to their initial positions upon tion, means for setting up the multiplicand,

means for setting up the multiplier including toothed disks forming calculating elements, a movable body in which said disks are mounted, a displaceable carriage for indicating the product, means operatively connecting said carriage to said means for setting up the multiplier and adapted to release said carriage for displacement by a step by step movement, the number of steps depending on the number of digits of the multiplier, a slide operatively connected to said carriage and to said movable body, whereby said slide and said body take part in the displacement movement of the carriage, a pusher pawl for returning the set up toothed disks into their initial positions, and an axle on which said )awl is slidably mounted, said pusher pawl eing acted upon by said slide and displaced along its axle.

8. In a calculating machine, in combination, means for setting up the multiplicand, means for setting up the multiplier including toothed disks forming calculating elements, a movable body in which said disks are mounted, a displaceable carriage for indicating the product, means operatively connecting said carriage to said means for setting up the multiplier and adapted to release said carriage for displacement by a step by step movement, the number of steps depending on the number of digits of the multiplier, a slide operatively connected to said carriage and to said movable body, whereby said slide and said body take part in the displacement movement of the carriage, locking pawls for said toothed disks, and a pawl for releasing said locking pawls, whereby the movable body presents said locking pawls'successively to said releasing pawl during its movement for setting up said toothed disks.

9. In a calculating machine, in combination, means for setting up the multiplicand, means for setting up the multiplier including toothed disks forming calculating elements, a carriage adapted to be displaced relatively to said means for setting up the multiplier, a movable body in which said disks are mounted, means operatlvely connecting said carriage to said means for setting up the multiplier and adapted to release said carriage for displacement by a step by step movement, the number of steps depending on the number of digits of the multiplier, a slide operatively connected to said carriage and to said movable body, whereby said slide and said body take part in the displacement movement of the carriage, locking pawls for said toothed disks, a pawl for releasing said locking pawls, whereby the movable body presents said locking pawls successively to said releasing pawl during its movement for setting up said toothed dlsks, a control rod form- 1ng part of said means for displacing said carriage, and an operative connection between of digits of the set up multiplier in order to determine the travel of the carriage, and means for automatically returning said' setting-up means to their initial positions upon completion of the multiplication.

11. In a calculating machine, in combination, means for setting up the multiplicand,

means for setting up the multiplier, a carriage for indicating the product adapted to be displaced relatively to said means for setting up the multiplier, a locking member operatively connected to said means for setting up the multiplierand released for displacement by said means in a step by step movement, the number of steps corresponding to the number of digits of said set-up multiplier, a further member cooperating with said locking member and forming an abutment for said carriage to limitthe travel of the latter, and means for automatically returning said setting-up means to their initial positions upon completion" of the multiplication.

12. In a calculating machine, in combination, means for setting up the multiplicand, means for setting up the multiplier, a carriage for indicating the product adapted to be displaced relativelyto said means for setting up the multiplier, a locking member operatively connected to said means for setting up the multiplier and released for displacement by said means in a step by step movement, the number of stepscorresponding to the number of digits of said set up multiplier, a movable body including calculating elements in the form-of toothed discs and forming part of the means for setting up the multiplier, an operative connection is between said movable body and said locking member, and a further member cooperating with said locking member and forming an abutment for said carriage to limit the travel of the latter.

13. In a calculating machine, in combination, means for setting up the multiplicand, means for setting up the multiplier, a carriage for indicating the product adapted to be displaced relatively to said means for setting up the multiplier, a locking member plier and released for displacement by said means in a step by step movement, the number of steps corresponding to the number of digits of said set up multiplier, and a further number cooperating with said teeth of said locking member and forming an abutment for said carriage to limit the travel of the latter, said teeth determining the step by step movement of said further member.

14. In a calculating machine, means for setting up the multiplicand, means for setting up the multiplier including a movable body carrying toothed calculating elements, a displaceable carriage for indicating the product, said means for setting up the multiplier operatively connected to said carriage for step-wise displacing of the same, a sliding means, means for positively connecting said carriage With said sliding means, said sliding means adapted for joint movement with said movable body in one direction, whereby the carriage and the movable body are simultaneously displaced step by step upon setting up each digit in the multiplier.

In testimony whereof I have signed my name to this specification.

HEINRICH SUTER.

provided with teeth and operatively connected to said means for setting up the multi- 

